AZ2203100002 planet carrier assembly is a core transmission component of Sinotruk heavy truck gearbox planetary reduction system. It serves as the mounting base for planetary gears, bearing the torque load transmitted during vehicle driving. Made of high-strength cast alloy, it adopts precision machining and heat treatment technology, featuring high rigidity and excellent fatigue resistance to withstand heavy torque and impact loads in heavy-duty transportation. The planetary carrier keeps the planetary gears operating at a stable rotation track to realize speed change and torque amplification of the gearbox. Every assembly undergoes strict dimensional inspection and load testing before shipment, ensuring stable operation under long-time heavy-load, mountain and complex road conditions. Supplied as a complete assembly for direct replacement. We maintain sufficient inventory and stable bulk supply for repair workshops, fleet operators, auto spare parts dealers and global cross-border export customers.